From abfa371d1d2c14052d4cbfc885b8383c6da7d499 Mon Sep 17 00:00:00 2001
From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Wed, 20 Mar 2013 19:06:30 +0100
Subject: [PATCH 1/1] better accessibility of map-related properties

also fixed a typo
---
 src/graphics/Camera.h | 1 +
 src/map/Map.cpp       | 4 ++++
 src/map/Map.h         | 8 +++++---
 src/map/MapState.cpp  | 4 ++--
 src/map/MapState.h    | 9 ++++++++-
 5 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/graphics/Camera.h b/src/graphics/Camera.h
index ea4e6d5..7403d6f 100644
--- a/src/graphics/Camera.h
+++ b/src/graphics/Camera.h
@@ -15,6 +15,7 @@ public:
 public:
 	void Resize(int w, int h) { halfWidth = w / 2; halfHeight = h / 2; }
 	void SetTarget(const math::Vector<math::Fixed<8> > *t);
+	const math::Vector<math::Fixed<8> > *GetTarget() const { return target; }
 
 	math::Vector<int> CalculateOffset() const;
 
diff --git a/src/map/Map.cpp b/src/map/Map.cpp
index 85fbd22..ed6cc06 100644
--- a/src/map/Map.cpp
+++ b/src/map/Map.cpp
@@ -104,6 +104,10 @@ Vector<int> Map::TileCoordinates(const Vector<int> &position) const {
 	return position / tileset->Size();
 }
 
+Vector<int> Map::PixelCoordinates(const Vector<int> &position) const {
+	return position * tileset->Size();
+}
+
 
 void Map::Render(
 		SDL_Surface *dest,
diff --git a/src/map/Map.h b/src/map/Map.h
index e0a95dd..6b2eea4 100644
--- a/src/map/Map.h
+++ b/src/map/Map.h
@@ -21,8 +21,8 @@ namespace map {
 /// Maps are made up of uniform areas of tiles.
 /// The looks of a tile is defined by the Tileset() sprite with Tile::Offset()
 /// as the column and row in the sprite.
-/// Maps can be propulated with triggers and entities. Those are or use with
-/// MapState and are not handled by the map itself.
+/// Maps can be propulated with triggers and entities. Those are for use with
+/// a MapState and are not handled by the map itself.
 /// Positions are expressed either as pixel or tile coordinates depending on
 /// function purpose with (0|0) being the top left corner and positive values
 /// extending to the right and down respectively.
@@ -50,8 +50,10 @@ public:
 	/// The battle background image for this map if neither the tile nor the
 	/// area has one specified.
 	SDL_Surface *BattleBackgroundAt(const math::Vector<int> &);
-	/// Convert coordinates pixel to tile.
+	/// Convert coordinates from pixel to tile.
 	math::Vector<int> TileCoordinates(const math::Vector<int> &) const;
+	/// Convert coordinates from tile to pixel.
+	math::Vector<int> PixelCoordinates(const math::Vector<int> &) const;
 
 	Entity *EntitiesBegin() { return entities; }
 	Entity *EntitiesEnd() { return entities + numEntities; }
diff --git a/src/map/MapState.cpp b/src/map/MapState.cpp
index b8b5eb6..0e0a3ee 100644
--- a/src/map/MapState.cpp
+++ b/src/map/MapState.cpp
@@ -43,7 +43,7 @@ MapState::MapState(GameConfig *g, Map *map)
 
 
 void MapState::OnEnterState(SDL_Surface *screen) {
-	camera.Resize(screen->w, screen->h);
+	OnResize(screen->w, screen->h);
 	tileAnimation = GraphicsTimers().StartInterval(512);
 	LoadMap(map);
 }
@@ -53,7 +53,7 @@ void MapState::OnExitState(SDL_Surface *screen) {
 }
 
 void MapState::OnResumeState(SDL_Surface *screen) {
-	camera.Resize(screen->w, screen->h);
+	OnResize(screen->w, screen->h);
 }
 
 void MapState::OnPauseState(SDL_Surface *screen) {
diff --git a/src/map/MapState.h b/src/map/MapState.h
index 1901a67..b243c3b 100644
--- a/src/map/MapState.h
+++ b/src/map/MapState.h
@@ -38,7 +38,11 @@ public:
 
 public:
 	void AddEntity(Entity *e) { entities.push_back(e); }
-	void ControlEntity(Entity *e) { controlled = e; camera.SetTarget(&e->Position()); }
+	void ControlEntity(Entity *e) { controlled = e; TrackControlled(); }
+	void Track(math::Vector<math::Fixed<8> > *t) { camera.SetTarget(t); }
+	void TrackControlled() { if (controlled) Track(&controlled->Position()); }
+
+	math::Vector<math::Fixed<8> > TrackPoint() const { return *camera.GetTarget(); }
 
 	void SetWalkingSpeed(math::Fixed<8> s) { walkingSpeed = s; }
 
@@ -46,6 +50,9 @@ public:
 
 	virtual void HandleSyscall(common::ScriptRunner &);
 
+	const graphics::Camera &GetCamera() const { return camera; }
+	Map *GetMap() { return map; }
+
 private:
 	virtual void OnEnterState(SDL_Surface *screen);
 	virtual void OnExitState(SDL_Surface *screen);
-- 
2.39.2